WHAT DOES THE STUDY INVOLVE? There will be approximately 10 clinics in the study with about 500 women from all over the United States participating in this study. You are being asked to participate in a research study because you are a woman between the ages of 18 and 40, are in general good health, have regular menstrual cycles, do not want to become pregnant for at least the next 7 months, and are willing to rely on the female condom as your primary method of contraception during study participation.